Measurement of Azimuthal Asymmetries With Respect To Both Beam Charge and Transverse Target Polarization in Exclusive Electroproduction of Real Photons

Abstract

Azimuthal asymmetries in exclusive electroproduction of real photons are measured for the first time with respect to transverse target polarisation, providing new constraints on Generalized Parton Distributions. From the same data set on a hydrogen target, new results for the beam-charge asymmetry are also extracted with better precision than those previously reported. By comparing model calculations with measured asymmetries attributed to the interference between the deeply virtual Compton scattering and Bethe-Heitler processes, a model-dependent constraint is obtained on the total angular momenta carried by up and down quarks in the nucleon.

24 pages, 10 figures, 2 tables; 1 figure,3 references added, slight text change

References in corpus (2)

• The dual parameterization of the proton generalized parton distribution functions H and E and description of the DVCS cross sections and asymmetries
• On "dual" parametrizations of generalized parton distributions

Cited by in corpus (26)

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• Single and double spin asymmetries for deeply virtual Compton scattering measured with CLAS and a longitudinally polarized proton target
• Sum rules and dualities for generalized parton distributions: is there a holographic principle?
• Rosenbluth separation of the ${\pi }^0$ electroproduction cross section
• Extraction of the Compton Form Factor H from DVCS measurements at Jefferson Lab
• First Exclusive Measurement of Deeply Virtual Compton Scattering off ${}^4$He: Toward the 3D Tomography of Nuclei
• Conceptual design of the Spin Physics Detector
• Deeply virtual Compton scattering on a virtual pion target
• Towards the determination of the gluon helicity distribution in the nucleon from lattice quantum chromodynamics
• Spatial imaging of proton via leading-twist non-skewed GPDs with basis light-front quantization
• 2D energy-momentum tensor distributions of nucleon in a large-$N_c$ quark model from ultra-relativistic to non-relativistic limit
• Quark spin and orbital angular momentum from proton GPDs
• Beam charge asymmetries for deeply virtual Compton scattering off the proton
• Prospects for quarkonium studies at the high-luminosity LHC
• Extracting transition generalized parton distributions from hard exclusive pion-nucleon scattering
• Polarized gluon distribution in the proton from holographic light-front QCD
• Proton spin after 30 years: what we know and what we don't?
• GPDs from present and future measurements
• Study of deeply virtual Compton scattering at the future Electron-Ion Collider
• Nucleon Structure from Basis Light-Front Quantization : Status and Prospects
• Probing nucleon spin structure in deep-inelastic scattering, proton-proton collisions and Drell-Yan processes
• New framework for extracting GPDs from exclusive photon electroproduction
• Assessing the impact of the electron ion collider in China on Deeply Virtual Compton Scattering